San Joaquin River - San Joaquin Harbor Weather Forecast

    • 50
    • 70

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 52
    • 76

    Sunny

    • 51
    • 77

    Mostly Sunny

    • 49
    • 72

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

Today 6 Mar East Bay Interior Valleys

Sunny. Highs in the lower 70s. North Winds 10 to 20 Mph. Gusts up to 35 Mph in the morning.

Tonight 6 Mar East Bay Interior Valleys

Mostly clear. Lows in the mid 40s to lower 50s. Northeast Winds 10 to 20 Mph.

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San Joaquin River - San Joaquin Harbor Temperature Statistics

March Temperature

Concord, Buchanan Field (15.5 miles)

  • Lowest 3 March, 2026

    48.9 °F

  • Average March

    59.2 °F

  • Highest 3 March, 2026

    70 °F

Climate (2021–Present)

Concord, Buchanan Field (15.5 miles)

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  • Average Low 2021–2026

    50.9 °F

  • Average 2021–2026

    61.3 °F

  • Average High 2021–2026

    74.2 °F
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